Priming device



. take manifold 2, and a neck 3 FRANK G. SLEMMER, 0F GENTERVILLE, MARYLAND.

HPRIMING nnvron.

Specification of Letters Patent. Patented Apr. 12, 1321,

Application filed July 16, 1919. Serial No. 311,338.

T 0 all whom it may concern:

Be it known that I, FRANK G. SLEMMER, a citizen of the United States, residing at Centerville, in the county of Queen Annes and State of Maryland, have invented a new and useful PrimingDevice, ofwlnch the following is a specification.

By way of explanation, it may be stated that to start an internal combustion eng ne in cold weather is an operation fraught wlth considerable difiiculty, and, therefore, one object of the invention is to provide novel means for heating a priming charge of fuel before the same is delivered to an internal combustion engine.

Another object of the invention is to provide a portable primer which may be heated without difliculty and be assembled with any desired part of an engine.

Another object of the invention is to provide novel means whereby the liquid charge may be transformed into gas as it is sucked into the cylinder.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combina-- tion and arrangement of'parts and in the details of construction hereinafter described and claimed, it being understood that, with in the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows a side elevation, a portion of the fuel intake system of an internal combustion engine, wherewith the device forming the subject matter of this appli cation is adapted to be assembled; Fig. 2 is a longitudinal section showing the primer in place; and Fig. 3 is a cross section on the line 3 3 of Fig. 2.

Although the structure hereinafter described may be mounted in various places on an internal combustion engine, there is shown in the drawings, a carbureter 1, an inconnecting the carbureter with the manifold.

The numeral 4 denotes a casing, one end 5 of which is mounted, by way of illustration, in the neck 3, the opposite end of the casing being. denoted by the numeral 6 and having an internal terminal recess 7 The bore of the casing is shown at 8 and communicates at one end with the recess 7. A valve or cook 9 of any sort is carried by the casing 4 and controls the bore the valve being operated by any suitable means indicated at 10. The primer comprises a body 11 which may be constructed as desired. In the pres ent instance, but not of necessity, the body, which is fashioned of metal, includes a tube 12 on the upper end of which a screen 14 is mounted. A tubular inlet member 15 is threaded at 16 on the upper end of the tube 12 and engages the screen 14 to hold the same 011 the end of the tube, the inlet member having a shoulder 17 which cooperates immediately with the screen 14.

The invention includes a tubular outlet member 18 threaded at 19 on the lower end of the tube 12 and supplied with an internal shoulder 20 on which rests a screen 23 held on the shoulder by the lower end of the tube 11. Below the shoulder 20, the outlet member 18 may be supplied with a circumscribing seat 21, there being an inclined shoulder 22 in the outlet member below the seat. A funnel 24 is supported on the inclined shoulden 22 and may be held in place by an expansion ring 25 mounted in the seat 21. Between the screens 14 and 23, a quantity of more or less finely divided material is placed. Any desired material may be placed at the point indicated, but, preferably, metal or mineral wool, metal chips, borings, turnings, filings or the like are employed.

The primer is of sufficient bulk so that it will retain and hold heat, and it will be un derstood that the body 11 may be placed in or on a stove, on a register, in a gas flame, or elsewhere, until it is heated sufliciently, Then the structure is seated on the end 6 of the casing 4, a slip-joint connection being provided at the end 6, the end 6 entering within the end of the outlet member 18, and the funnel 24 cooperating with the recess 7. A small quantity of gasolene or other fuel is introduced into the member 11, through the inlet 15, and this fuel is instantly turned into gas as it traverses the material 26, the gas flowing through the screen 23, the funnel 24 delivering the gas into the bore 8, the valve 9 being opened, and the gas passing into some part of the intake conduit of the engine. The fuel, as

it passes through the body of the primer is heated, and air is drawn through the member 11 along with the fuel. I

When the occasion for the use of the primer has passed the primer may be lifted off the valve casing 4L, and the valve 9m ay be closed. 7

' Having thus described the invention, what is claimed is 1. A portable primer for internal combustion engines, of sufficient bulk tohold heat during the transportation of the primer to the engine from a remote source of heat, said primer having means for effecting a slip-joint connection with an engine, and having a passageway s0 located that a priming charge may flow therethrough by gravity one end of the passage being open to the atmosphere, to permit the introduction of a priming charge;

2. A primer constructed as set forth in claim 1, and further characterized by the fact that the passage contains a mass of finely divided metal.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses. V

V J. LEO CARR. 

